Dahal A Samuel ; Sabitu M Zainu ; Helen D Nanbol... http://www.njmonline.org/article.asp?issn=1115-2613;year=2019;volume=28;issue=3;spage=266;epage=274;aulast=Samuel;type=0.
,
2019
Mark O Okolo ; Esther Kim ; Henrietta S Tiri... http://www.njmonline.org/article.asp?issn=1115-2613;year=2017;volume=26;issue=2;spage=163;epage=166;aulast=Okolo;type=0.
,
2017